Sitagliptin reduces insulin resistance and improves rat liver steatosis via the SIRT1/AMPKα pathway

  • Authors:
    • Tian Shen
    • Bilin Xu
    • Tao Lei
    • Lin Chen
    • Cuiping Zhang
    • Zhenhua Ni
  • View Affiliations

  • Published online on: August 1, 2018     https://doi.org/10.3892/etm.2018.6554
  • Pages: 3121-3128
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Abstract

Non‑alcoholic fatty liver disease (NAFLD) is the most common liver disease. It is asymptomatic at presentation and is frequently identified among individuals with metabolic dysfunction, including obesity and diabetes. NAFLD is primarily characterized by the accumulation of triacylglycerol in the liver. Since insulin resistance and fat metabolism dysregulation are major causes of type 2 diabetes and NAFLD, anti‑diabetes agents are widely considered as potential therapy strategies for NAFLD. Sitagliptin, an inhibitor of dipeptidyl peptidase‑4, has been developed as an oral anti‑hyperglycemic agent. In the present study, the effect of sitagliptin on the progression of NAFLD was evaluated in a rat model fed with a high fat diet (HFD). It was identified that sitagliptin significantly suppressed lipid accumulation in rat blood and liver and improved insulin resistance. Furthermore, it was revealed that sitagliptin reactivated the HFD‑suppressed SIRT1/AMPK axis pathway and upregulated its downstream target genes, modulating fatty acid metabolism. These findings demonstrate a preventive effect of sitagliptin on hepatic lipid dysregulation and suggest that sitagliptin has potential as a clinical therapeutic strategy for NAFLD.
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October-2018
Volume 16 Issue 4

Print ISSN: 1792-0981
Online ISSN:1792-1015

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Spandidos Publications style
Shen T, Xu B, Lei T, Chen L, Zhang C and Ni Z: Sitagliptin reduces insulin resistance and improves rat liver steatosis via the SIRT1/AMPKα pathway. Exp Ther Med 16: 3121-3128, 2018
APA
Shen, T., Xu, B., Lei, T., Chen, L., Zhang, C., & Ni, Z. (2018). Sitagliptin reduces insulin resistance and improves rat liver steatosis via the SIRT1/AMPKα pathway. Experimental and Therapeutic Medicine, 16, 3121-3128. https://doi.org/10.3892/etm.2018.6554
MLA
Shen, T., Xu, B., Lei, T., Chen, L., Zhang, C., Ni, Z."Sitagliptin reduces insulin resistance and improves rat liver steatosis via the SIRT1/AMPKα pathway". Experimental and Therapeutic Medicine 16.4 (2018): 3121-3128.
Chicago
Shen, T., Xu, B., Lei, T., Chen, L., Zhang, C., Ni, Z."Sitagliptin reduces insulin resistance and improves rat liver steatosis via the SIRT1/AMPKα pathway". Experimental and Therapeutic Medicine 16, no. 4 (2018): 3121-3128. https://doi.org/10.3892/etm.2018.6554